Overview
The DAC7512DBVREP, produced by Texas Instruments, is a low-power, single, 12-bit buffered voltage output Digital-to-Analog Converter (DAC). It features an on-chip precision output amplifier that allows for rail-to-rail output swing, making it suitable for a wide range of applications. The DAC7512 is designed for low power consumption, making it ideal for portable battery-operated equipment.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Resolution | 12 bits | |
| Power Supply | +2.7V to +5.5V | |
| Power Consumption (Normal Operation) | 135µA at 5V, 0.7mW at 5V | |
| Power Consumption (Power-Down Mode) | 200nA at 5V, 50nA at 3V, 1µW at 5V | |
| Serial Interface | Three-wire serial interface, compatible with SPI, QSPI, Microwire, and DSP interfaces | Up to 30MHz clock rate |
| Output Amplifier | On-chip precision output amplifier, rail-to-rail operation | |
| Power-On Reset | Output powers up at 0V and remains there until a valid write sequence | |
| Package Options | SOT23-6 and MSOP-8 |
Key Features
- Low-power operation with microPOWER consumption: 135µA at 5V
- Power-down feature reducing current consumption to 50nA at 5V and 1µW in power-down mode
- On-chip precision output amplifier allowing rail-to-rail output swing
- Three-wire serial interface compatible with SPI, QSPI, Microwire, and DSP interfaces, up to 30MHz clock rate
- Power-on reset circuit ensuring output voltage at 0V until a valid write sequence
- Three power-down functions accessible over the serial interface
- Low power serial interface with Schmitt-triggered inputs
- SYNC/INTERRUPT facility
Applications
- Portable battery-powered instruments
- Digital gain and offset adjustment
- Programmable voltage and current sources
Q & A
- What is the resolution of the DAC7512?
The DAC7512 has a resolution of 12 bits.
- What is the power supply range for the DAC7512?
The power supply range is +2.7V to +5.5V.
- How much power does the DAC7512 consume in normal operation?
The DAC7512 consumes 135µA at 5V, which translates to 0.7mW.
- What are the power-down modes of the DAC7512?
The DAC7512 has three power-down functions, reducing current consumption to 200nA at 5V and 50nA at 3V, and 1µW in power-down mode.
- What type of serial interface does the DAC7512 use?
The DAC7512 uses a three-wire serial interface compatible with SPI, QSPI, Microwire, and DSP interfaces, up to 30MHz clock rate.
- Does the DAC7512 have an on-chip output amplifier?
Yes, the DAC7512 features an on-chip precision output amplifier with rail-to-rail operation.
- What happens to the output voltage during power-on?
The output voltage powers up at 0V and remains there until a valid write sequence is made to the DAC.
- In what packages is the DAC7512 available?
The DAC7512 is available in SOT23-6 and MSOP-8 packages.
- What are some typical applications of the DAC7512?
Typical applications include portable battery-powered instruments, digital gain and offset adjustment, and programmable voltage and current sources.
- Is the DAC7512 suitable for battery-operated devices?
Yes, the low power consumption of the DAC7512 makes it ideally suited for portable battery-operated equipment.
